OptiMATE Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer;

Unique LiFePO4 battery protection! The OptiMate Lithium 0.8A 4S charges LiFePO4 / LFP (Lithium Iron Phosphate) 4-series batteries with nominal voltage of 12.8V – 13.2V! Program steps - STEP1: Low Volt Start (0.5V). STEP2: Ultra LOW VOLT SAVE. STEP3: LOW VOLT SAVE cell monitoring. STEP4: TEST cell damage. STEP5: Cell-balancing CHARGE. STEP6: OPTIMIZE. STEP7: TEST after CHARGE. STEP8: OptiMate maintenance. Special features: • Saves low voltage LiFePO4 batteries • Specialized LiFePO4 charge cycle • Maintains & protects LiFePO4 batteries • Battery BMS reset. SAFE: No risk of overcharging. Totally safe for vehicle electronics. Sparks suppressed. Safe for long-term battery maintenance. Automatic shut-down if short-circuited or battery disconnected. 3-year limited replacement warranty.